The recent storm brought some much needed moisture to Southern California without the dangerous mudslides some feared. But did it help reduce the fire danger?

More rain fell Monday on parts of Southern California after causing mudflows over the weekend, helping firefighters but boosting the risk of toxic ash runoff in areas scorched by Los Angeles-area wildfires.

Elevated concentrations of heavy metals have been detected at the Elkhorn Slough Reserve by scientists following a recent fire at Vistra Moss Landing Power Plant and Energy Storage Facility.

Elevated concentrations of heavy metals have been detected at the Elkhorn Slough Reserve by scientists from San Jose State University.

Research scientists with San Jose State University’s Moss Landing Marine Laboratories (MLML) detected “unusually high concentrations of heavy-metal nanoparticles”